SkinPen® Micro Therapy can be used on all skin types and skin colors, and can address a wide range of problems, including: acne scarring, stretch marks, fine lines and wrinkles, and any area where cell regeneration is desired. Most patients begin to see results in one day to a week after treatment, though each patient’s healing time differs. Immediately after treatment, you may notice a pink appearance in the treatment area and in some cases minor pin-point bleeding depending on the depth of the needle penetration.